January 21, 2013: AAVSO observations are requested of the SW Sex-type novalike variable BB Dor in support of one and possibly two sets of multiwavelength observations: Dr. Tomohito Ohshima (Department of Astronomy, Kyoto University) and colleagues have triggered Target of Opportunity observations with NASA's Swift gamma-ray burst satellite, and Dr. Boris Gaensicke (Warwick University) is hoping to observe BB Dor in the ultraviolet with HST.

BB Dor is currently very faint now (<18V), according to observations reported to the AAVSO International Database and elsewhere, which makes it a good time to carry out studies of the white dwarf in the system. Dr. Ohshima and colleagues plan to observe BB Dor on January 23; Dr. Gaensicke's schedule is not set but he has requested good coverage of this low state to help in understanding this system (AAVSO Special Notice #323, http://www.aavso.org/aavso-special-notice-323[1]).

BB Dor is very faint in this low state, so visual observations are not feasible. Photometry is requested from now through the end of the observing season.